Day 1
Depachika food halls, Asakusa, and a Shimokitazawa night
Morning: Start with the live Itinerai output's depachika idea: a department-store basement food hall. Tokyo first-timers often underestimate how good these are for an easy landing meal, especially if your hotel room is not ready yet. Browse prepared bento, fruit, sweets, and bakery counters, then eat nearby instead of trying to decode a major restaurant queue while jet-lagged. If you arrive early, use Ginza, Tokyo Station, or Shinjuku as the most convenient version of this stop.
Afternoon: Move to Asakusa for Senso-ji, Nakamise-dori, and the side lanes around the temple. The generator flagged Asakusa as a culture anchor, and it is a smart first-day choice because the route is visually rewarding even at a relaxed pace. Do the temple approach, step away from the densest souvenir stretch, and leave enough time for a coffee or melon-pan break before getting back on the subway.
Evening: Close in Shimokitazawa if you still have energy. The generated itinerary called out the neighborhood's vintage-shopping side streets, which work best as a wander rather than a checklist. Keep dinner casual, browse record shops and used-clothing stores, then head back before the last-train calculation becomes stressful. If jet lag hits hard, swap this for a simple Shinjuku dinner near your hotel.